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Old 07-14-2012, 02:48 AM   #1
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dried mortar on stone

What is the best home solution to get dried mortar off of stone ?

Weedwacker is offline   Reply With Quote
Old 07-14-2012, 06:42 AM   #2
Join Date: Apr 2012
Location: UK
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dried mortar on stone

The usual way to remove OPC mortar staining is a dilute solution of hydrochloric acid This is available as a proprietory solution at builder's merchants or DIY outlets. It is simply brushed on with a scrubbing brush, and then washed off with water.
Some stones and bricks can be discoloured by the process and it is best to try it on an inconspicuous part first.

tony.g is offline   Reply With Quote

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